/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.antgroup.geaflow.io;

import java.util.concurrent.TimeUnit;

public interface IMessageBuffer<M> {

    /**
     * Push a message to this pipe.
     *
     * @param message message
     */
    void offer(M message);

    /**
     * Pull a record from this pipe with timeout.
     *
     * @param timeout timeout number
     * @param unit timeout unit
     * @return message
     */
    M poll(long timeout, TimeUnit unit);

}
